Primary battery.



Patented Mar. 5, 1918.

final/Zw? esldzoen meha C. B. SCHOENMEHL.

PRIMARY BATTERY. APPLICATION FILED nc.24. |914.

/L/mb RM CHARLES B. SCHOENMEI-IL, OF VATERBURY, CONNECTICUT.

PRIMARY BATTERY.

Specification of Letters Patent.

Patented Mar. 5, 1918.

Application filed December 24, 1914. Serial No. 873,954.

To ali whom, may concern:

Re it known that I, CHARLES B. SCHOEN- monr., a citizen of the UnitedStates, and resident of IVaterbury, in the county of New llaven andState of Connecticut, have invented certain new and useful Improvementsin Primary Batteries, of which the following is a specification.

.ltly invention relates generally to primary batteries and in someaspects is an improvement on the battery shown and described in LettersPatent No. 1,080,483, granted to me December 2, 1913. |The object of myinvention is to make more effective the contact between the positiveelements and the current conducting and supporting means associatedtherewith, and to permit the mounting of a plurality of positive andnegative electrodes in cooperative relation with one another, under theinnnoved conditions of contact referred to, without preventing orotherwise interfering` with the use of such insulating and supportingmeans as may be necessary to keep the Atwo sets of electrodes supportedand electrically separated from each other. lli/fore partci'ilarly, myinvention relates to an in'iproved mechanical and electrical connectionbetween the supporting through bolt or rod and the Zinc plate or platessupported thereby.

For a further description of my invention, reference is had to thedrawings accompanying and forn'xing a part of this specification, and inwhich :m

Figure 1 is a vertical section through a prin'iary battery embodying myinvention;

Iiig. 2 is an end view of the electrode structure shown in Fig. l;

Fig. 3 is a perspective view of the through bolt or rod employed in thestructure illustrated in Figs. 1 and Q; and

Fig. 4 is a vertical section through a modified form of electrodestructure embodying my invention.

Referring particularly to Figs. 1, 2 and 3, numeral 1 indicates the jaror container of a battery and the numeral 2 indicates the cover for thesame. The jar receives and contains a suitable electrolyte forcooperation with positive zine electrodes 3 and negative electrodes 4formed of compressed copper oXid. The positive and negative electrodesare arranged alternately and are supported or suspended from a bolt orstein 5 passing through a hole in the cover and fastened to the cover bymeans of lock nuts 6. At its lower end inside the jar 1 the stein has ahead which supports a yoke 7, a suitable lock nut being used to forcethe middle of the yoke against the head. rIhe negative electrodes et arecarried between upper and lower horizontal channel pieces 9 and 8supported by yokes 10 which pass through the ends of the channel piecesand have their lower ends threaded to receive nuts 11. The yokes l0 passthrough spring clips 12 which are U- shaped in form, inverted andfastened at their mid-points to the ends of the yoke 7 by means of shortbolts or screws 13. These bolts may have spacing nuts between the elijs1Q and the yoke 7 and receive lock nuts at their upper ends to securethe clips 12 to the yoke as `tightly as may be required. 'lhe ends ofthe clips 12 are bent outward as shown at lll and these ends 1st pressupon the channel pieces and thus these upper channel pieces 9 are forceddown upon the upper edges of lthe electrodes il. In this way theelectrodes et are kept in intimate contact with the lower channel piecesS and these channel pieces rest securely upon the nuts 11. The clips 12are provided with holes through which the middle portions of the yokespass.

Between the positive electrodes 3 at the upper ends thereof are placedinsulating sleeves or bushings 15 and through these bushings a throughbolt or rod 16 is extended which secures the electrodes 3 and thebushings 15 together mechanically and also serves to connect thepositive electrodes 3 electrically. The bottoms of these sleeves engagethe top channel pieces 9 and may be grooved on their upper faces toreceive the middle portions of the yokes 10, and they are preferablyshaped to tit into the clips 12 and be snugly engaged thereby.

In order to provide more perfect contact between the middle electrode 3and the bolt or rod 1G, the middle electrode 3 is cast on this bolt.Furthermore, I preferably pro vide the bolt or rod 1G with a suitableenlarged portion or laterally extending projection 17 in the middlethereof and preferably integral therewith, and cast the middle electrode3 on the bolt 16 around this projection, whereby I not only obtainsubstantially perfect electrical contact, but I also make the bolt orrod and the conductive element or electrode 3 rigid with respect to eachother. This projection may have any shape, but I prefer to malte it inthe form of a square or other polygonal or angularly shaped flange orcollar 17 and when the middle electrode 3 is cast around this collar,the electrode cannot revolve around the bolt or rod or move along thesame. The projection may be formed by swaging, upsetting or in any othersuitable manner.

is will be readily understood, the outside electrodes 3 are simplyperforated and slipped over the opposite ends of the bolt or rod 1G, andsecured in position by means of nuts 19 screwed on the ends of the bolt,the said ends being threaded and washers or dislrs i8 being interposedbetween the nuts and the end electrodes 3 it desired. I secure one ofthe conducting leads 20 to the bolt by a nut 2l and the other lead 22 issecured to the stem 5 by means of a nut 23. Thus, all the positiveelectrodes are connected together and to the wire 20, and all thenegative electrodes l are connected to gether and to the wire 22, whileat the same time all the negative electrodes are insulated from all thepositive electrodes. As in the structure shown in my prior Patent No.1,080,5l83, the inner positive plate 3 is made of substantially doublethe thickness of the outer positive plates 3, to provide an increasedamount of material to suitably wort; out the adjacent sides ot the twonegative plates and thus insure all parts of the battery running outequally.

In Fig. l there is illustrated an electrode structure similar to that ofFigs, 1 and 2,

but dili'ering therefrom in that the through bolt or rod 16 is providedwith a plural ity of collars or projections 17 around each of which aZinc plate 3 is cast. One end of the bolt is extended through one of theoutside zinc plates, and is threaded to receive the nuts 19 and 2lbetween which the lead 20 is connected. A conducting washer 18 may beemployed if desired between. the nut 19 and the adjacent Zinc plate. Inorder to permit assembly et the parts, each of the insulating blocks l5may be made in two parts, with the dividing surface between said partspassing through the bolt, as i'or example, in a horizontal plane, as is,indicated by the dotted line a, a. By having each of said insulatorssplit or made in Lasarte parts, the insulator may be readily applied tothe portion of the bolt between any pair et adjacent zinc plates inassembling` the structure.

l do not wish to be restricted to the exact structure above described.,but desire to reserve to myseltI the right to malte any changes in theshape, size or arrangement of parts such as fairly fall within the scopeand spirit of my .invention as set forth in the claims appended hereto.

Having new described my invention, what l claim as new and desire toprotect by Letters Patent as `follows Y il. ln a primary battery, a rodoi" electrically conductive material 'tor supporting a battery plate,said rod having projection, and a battery plate of electricallyconductive material cast around a portion of said rod including theprojection, thereby aording substantially peri'ect contact between saidrodV and plate and preventing the relative movement thereof,substantially as de scribed.

if. ln a primary battery, a rod of electrically eonductive material forsupporting a battery plate, said. rod having an angular Y lange orcollar, and a battery plate ot electrically conductive material castaround said '[iange or collar, substantially as described.

ln a primary battery, a through bolt for supporting the battery plates,said bolt being provided with a lateral projection, and a Zinc batteryplate cast around a portion oli' said bolt including said projection,substantially as lescribed.

il2 ln a primary battery, a plurality ot positive and negative elementsalternately arranged, and means for supporting said elements and forinsulating the elements et' opposite polarity from each other, includinga conducting rod by which all of said elei ents are supported, one ormore of said elemente being cast directly on said rod, substantially asdescribed.

Signed at ldaterbury, in the county of New Haven and State oitConnecticut, this 1S day of December', A. D., 1911i.

CHARLES B. SCHOENMEHL. lllitnesses Francis T. llnnvns, HULDA M. Swanson.

Copies 0J.' this patent may be obtained for five cents caen, byaddressing the Gemmssener nf Patents,

Washington, il., lll,

